Literaturdatenbank
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Hackler, J. C. (2006). Assessment of genetic variation within and among natural and captive populations of alligator snapping turtles (macrochelys temminckii). Unpublished thesis , Oklahoma State University, Stillwater, Oklahoma.
Added by: Admin (06 Jan 2014 18:24:32 UTC) |
| Resource type: Thesis/Dissertation BibTeX citation key: anon2006g View all bibliographic details  |
Categories: General Keywords: Chelydridae, Genetik - genetics, Habitat - habitat, Haltung - husbandry, Macrochelys temminckii, Nordamerika - North America, Schildkröten - turtles + tortoises Creators: Hackler Publisher: Oklahoma State University (Stillwater, Oklahoma) |
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| Abstract |
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The alligator snapping turtle (Macrochelys temminckii) is a large aquatic species restricted to drainages of the Gulf of Mexico. In recent decades, populations have declined throughout this turtle’s range due, in part, to unregulated harvest. With growing interest, managers are now looking to develop protocols for conserving this species. Understanding the genetic diversity and structure of M. temminckii populations will assist conservationists in the development of a sound management plan. We assessed haplotypic diversity for M. temminckii in Oklahoma. Results indicated that M. temminckii in Oklahoma possess a previously described haplotype (A). We also used 9 microsatellite loci to examine levels of within and among population variation for M. temminckii from 8 river drainage basins and 2 captive populations. Results indicated significant populationlevel separation among drainage basins (FST = 0.027) and that drainage basins form distinct management units, with the Suwannee drainage basin being the most distinct genetically and possibly deserving special attention. A sound management plan for M. temminckii will require cooperation among local, state, and federal conservation agencies. Scope and Method of Study: The alligator snapping turtle (Macrochelys temminckii) is a large aquatic species restricted to drainages of the Gulf of Mexico. In recent decades, populations have declined throughout this turtle’s range due, in part, to unregulated harvest. With growing interest, managers are now looking to develop protocols for conserving this species. Understanding the genetic diversity and structure of M. temminckii populations will assist conservationists in the development of a sound management plan. We assessed haplotypic diversity for M. temminckii in Oklahoma. We also used 9 microsatellite loci to examine levels of within and among population variation for M. temminckii from 8 river drainage basins and 2 captive populations. Findings and Conclusions: Results indicated that alligator snapping turtles in Oklahoma possess a previously described haplotype (A). Results also indicated that there were significant population-level separations among drainage basins (FST = 0.027) and that drainage basins form distinct management units, with the Suwannee drainage basin being the most distinct genetically and possibly deserving special attention. A sound management plan for alligator snapping turtles is going to require cooperation between local, state, and federal conservation agencies.
Added by: Admin |